Battery cell news and battery issues.

[Nealh]

I thought it would be good to have a specific thread where we can discuss cell related news , queries, repairs, fault finding and any other related battery issues. That way it could make it easier reading for folks to fault find and possibly repair their own batteries with a bit of confidence.
With some nice pics and explanation from forum members we can make it a ' How to ' information thread as well, to help e bikers with what at time looks like a mine field but generally can be an easy and rewarding task.

 

[Nealh]

First bit of news I have seen recently.
LG have introduced a new cell a 21700, 5000mah 10a rated cell.
This I saw available from Queenbattery in China who sell reliable genuine cells,
http://queenbattery.com.cn/
Too new to find any unbiased reviews but never the less another new cell.

 

[Nealh]

A first step for any one with an e bike is to have a dvm or digital volt meter, these are relatively cheap to buy from ebay or other similar source for as little as a £5.


This one is the better of the two, in the coloured circle is a diode and a speaker marker. This has the buzzer that allows for checking of wire continuity, esp good for finding broken wiring.



This is another I have and a common one found on ebay.
Notice the diode marked doesn't have a speaker next to it so not so good for finding a wire break.

 

[billym1967]

i have very similar ones to the pictures. the bottom one ive had for donkeys years and it ok. i did get one similar to the top one on ebay recently, its in the bin now lol. got a lovely one of a guy who i put a kit on his bike. part of the deal lol

 

[billym1967]

it would be great to see some tutorials, maybe some diffrent types of BMS boards and how there wired.

 

[v8rick]

Hi i have a E3. Battery verification error. The battery is not recognised as an original battery on a Gazelle the battery is panasonic silver 2years and 3 month,2300 miles old
When i try and charge battery off the bike the charger flashes red,
any help appreciated
(lights still work but no pedal assist)